PIK Encoder¶
PIK Encoder example resides in L2/demos/pikEnc directory. The tutorial provides a step-by-step guide that covers commands for building and running kernel.
Executable Usage¶
- Work Directory(Step 1)
The steps for library download and environment setup can be found in Vitis Codec Library. For getting the design,
cd L2/demos/pikEnc
- Build kernel(Step 2)
Run the following make command to build your XCLBIN and host binary targeting a specific device. Please be noticed that this process will take a long time, maybe couple of hours.
make run TARGET=hw DEVICE=xilinx_u200_xdma_201830_2
- Run kernel(Step 3)
To get the benchmark results, please run the following command.
./build_dir.hw.xilinx_u200_xdma_201830_2/host.exe --xclbin build_dir.hw.xilinx_u200_xdma_201830_2/lepEnc.xclbin PNGFilePath PIKFilePath --fast
PIK Encoder Input Arguments:
Usage: host.exe -[-xclbin] --xclbin: the kernel name --fast: the encoding mode PNGFilePath: the path to the input *.PNG PIKFilePath: the path to the output *.pik
Note: Default arguments are set in Makefile, you can use other Pictures & Performance listed in the table.
- Example output(Step 4)
Found Platform Platform Name: Xilinx INFO: Found Device=xilinx_u200_xdma_201830_2 INFO: Importing build_dir.hw.xilinx_u200_xdma_201830_2/pikEnc.xclbin Loading: 'build_dir.hw.xilinx_u200_xdma_201830_2/pikEnc.xclbin' INFO: Kernel has been created INFO: Finish kernel setup ... INFO: Finish kernel execution INFO: Finish E2E execution INFO: Data transfer from host to device: 100 us INFO: Data transfer from device to host: 20 us INFO: Average kernel execution per run: 600 ms
Profiling¶
The hardware resource utilizations are listed in the following table. Different tool versions may result slightly different resource.
| IP | BRAM | URAM | DSP | FF | LUT |
| Kernel1 | 25 | 93 | 568 | 125920 | 97441 |
| Kernel2 | 411 | 252 | 1614 | 309222 | 262543 |
| Kernel3 | 178 | 128 | 216 | 114845 | 90011 |